Telescopic casement stay



Sept. 14, 1929.

TELQSCOPIC CASEMENT STAY Original File d August 4. 1924 F. MELSOMFatented Sept. 14, 1926.

warren srsrss rarer OFFIQE.

TELESCOPIC case-nuns s'r Y.

Application filed August 4, 1924, Serial No. 730,096, and in AustraliaMarch 1'7, 1924. v Renewed August 2, 1326 This invention relates to animproved telescopic stay for holding open at a desired distance acasement window, a door or the like.

The object of my invention is to provide a stay by which a casementwindow, door or the like may be held open at desired distance, such stayconsisting of two tubes or a rod and a tube, of suitable shape in crosssection, preferably round, one'sliding into and out of the other as thewindow, door or the like is closed or opened, with a spring controlledcatch for locking the two tubes or rod and tube securely at the positiondesired.

In order that the nature of my invention may be clearly understoodreference will be had to the accompanying sheet of drawings, in whichlike numerals refer to like parts in the different figures.

Figure 1 is a view 01': one modification o1 my invention shown in aposition holding open a casement window.

Figure 2 is a sectional elevation of the locking mechanism (shown inFigure 1) in its relation to the two tubes.

Figure 3 is a part sectional elevation of the locking mechanism (shownin Figures 2 and 3) in its relation to the two tubes, showing the springand catch carrier.

Figure 4- is a side elevation of another modification of my inventionwhilst- Figure 5 is an end elevation of Figure 4.

Reierring to Figures 41- and 5 which show the invention in its simplestform, the tube or red 2 moves into and out of tube 1. The tube 2 hasnotches 7 on its underside and into a desired notch 7 is sprung thecatch 13. The catch 13 may be a spring attached to the tube 1 and havinga loop through which the tube 2 passes whilst the catch 13 is depressed,and when in normal position the bight of the loop its snugly into thenotch 7 on tube 2.

It will be understood that the spring catch 13 instead of engagingnotches on the underside of tube 2 may engage notches on the upper sidebeing lifted out of same as required; or the loop of the spring catch 13may surround the outer tube 1 and in normal position lie in a notch ontube 1 as well as a notch in tube 2.

Referring to Figure 1, another modification of my invention is shown inwhich the tubes 1 and 2 are secured by hinges 3 and. 1 to the windowSill 5 and sash 6, a locking device being provided. The tube 2lhasnotches 7 and the tube 1 has one notch .8. The lockng dev ce 1s shownmore clearly in'Figures 2 and 3, and consists of a cylindrical metalcasing 9 secured around the end of the tube 1. Sliding inside thistubular piece 9 is a spring and catch carrier 10 closed at the top end,and having side portions cut away allowing it to fit over the tube 1. Alocking pin 11 is placed across the two ends or" the spring and catchcarrier 10 and a spring 12 is located in the head or" the said carrier10 hearing on the tube 1.

In lieu of a spring and catch carrier 10 as described and illustratedhaving a bifurcated portion and pin 11, a wire of U-shape may be usedthe ends of which are secured in a thumb piece sliding into the casing9, the spring 12 being accommodated between said thumb piece and tube 1.

In use the stay is secured by the hinge brackets 3 and 1 to the sill 5and sash 6 at a distance allowing the window to close whilst the tube 2is in the tube 1.

Referring again to Figures 1 and 5 when it is desired to open the windowthe spring catch 13 is depressed and thereby withdrawn'ii'rom the notch7. Upon release the catch 18 again resumes a normal position in thenotch 7 securely holding the tubes 1 and 2 in position until the springcatch 13 is again released.

Referring again to Figures 1, 2 and 3 when it is desired to open thewindow the catch and spring carrier 10 is pressed down ward in thecasing 9 the spring 12 is compressed and the pin 11 is released from thenotches 7 and 8 allowing the inner tube 2 to move out of outer tube 1.

On releasing the pressure on the catch and spring carrier 10 the pin 11again resumes its normal position in notches 7 and 8.

I claim 1. An improved telescopic stay for casement windows doors andthe like consisting of a hinged tube, a hingedinner rod having notches,and a spring controlled catch onthe tube engaging one or other of saidnotches on the rod.

2. An improved telescopic casement and the like stay comprising innerand outer tubes, hinges on their outer ends, notches on the inner tube,a notch on the outer tube, in combination with means for locking thesaid tubes in position comprising a casing secured to the inner end ofthe outer tube accommodating a spring and catch carrier having sideportions cut away to fit loosely over the outer tube, a locking pin atthe end of the said carrier adapted to be normally in the sloton theouter tube and a slot on the inner tube, and a compression springaccommodated in said carrier and on top of the outer tube.

3. A casement or like stay comprising a tube member, a rod memberslidable in the tube member, hinge elements at the outer ends of saidmembers to facilitate the attachment of the same to a window sash andframe, one of said members being provided with spaced notches, a barcarried by the other member and engageable With one or the other of saidnotches for holding the members in adjusted relation, and resilientmeans connected to said bar for normally holding the bar in one of thenotches, said resilient means having a hand engaging portion to pern'litthe operator to force the her out of the notch.

In testimony whereof I have signed my name to this specification.

FRANK MELSOM.

